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Water sticks to all kinds of things in nature — flowers, leaves, spider webs - and doesn't stick to others, such as a duck's back.

In this physics activity (page 10 of the PDF), learners will explore how energy from moving water can be used.

In an investigation called "Shape It!" learners craft tiny boats out of clay, set them afloat on water and then add weight loads to them, in order to explore: how objects stay afloat in water; what th

In this activity, learners use the design thinking process to design and build their own aqueduct, or water bridge.

In this activity, learners build water-propelled engines from soft drink cans.

Design a vessel that tests the limits of wind power given a set of off the shelf and recycled materials.

In this investigation, learners explore the force known as buoyancy by placing various objects into water and observing how they behave (for example, which sink more quickly, which float, how much wat

In this activity, learners make water rockets to explore Newton's Third Law of Motion. Learners make the rockets out of plastic bottles and use a bicycle pump to pump them with air.

Learners design, build, and test models of "dragon boats" made from up to three milk cartons.

On an airplane trip, learners have an opportunity to investigate the properties of air pressure at different altitudes.

In this activity, learners make a model of a power plant that uses steam. Learners use simple materials like foil, a tin can, and a pot of water to model a geothermal power plant.

Learners work in groups to construct bridges using stale marshmallows and toothpicks.

In this activity, learners build an electric two-paddle boat using paint paddles, plastic knives, and empty water bottles.

In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.